Sometimes a DJ or bedroom producer is using Windows. So it's quite surprising to hear you say that Linux is the standard.
Can you point me to any producers, artists, sound engineers, studios, or production houses that use Linux? I would love to know...
I have never seen anyone using CALF tools in this profession. Looking at what that does - the functionality is available in a number of rock-solid applications native to Apple (MainStage, Ableton, Logic, etc). So there's no reason why it would need to be ported to MacOS.
How are you measuring audio stack superiority? And in terms of "stack", are you talking about something separate from the suite of professional audio / MIDI tools that come standard on every Apple computer that don't seem to have any comparison on Linux or Windows?
Are you taking into account the availability of hardware drivers on these different platforms? What is your experience in setting up a Linux-based audio production system with a lot of outboard gear? This is one area that seems to be a major source of headaches and motivation to not use Linux for producers and engineers.
Even looking through the comments on this page - there's people talking about the difficulty of setting up a functional audio production environment in Linux compared to Apple. I've noticed this sentiment is repeated over and over again on HN (going back to previous articles on audio production, Ableton, etc).
This topic stands out to me as I've sincerely wanted Linux to be much less of a headache with audio so I can get off the Apple ecosystem entirely.